I use the 'metronome' function in Garageband '09 when making my solo acoustic finger style recordings to help ensure I stay on tempo. Question: can I set the metronome output volume 'independent' of the guitar output volume while I am 'monitoring' my recording via headphones? If yes . . . how do i do it? The problem I have is that to get the metronome volume loud enough for me to use it effectively as a guide, the guitar increases in volume as well, so . . . well hopefully you get the point.